Keto Tuna Melt Recipe with 90-Second Bread

This tasty keto tuna melt is the ultimate comfort food. In this easy recipe, the tuna melt is made with microwave 90-second bread.

Keto Tuna Melt

Keto tuna melt is a lifesaver when you miss “the way you used to eat.” Let’s face it – toasted cheesy bread is amazing. And even on a low carb or keto diet, we still crave many of those old comfort foods.

Luckily, there are many excellent keto alternatives to high-carb comfort foods. Such as these keto tuna melts, chocolate peanut butter fudge, hot pizza dip, keto garlic bread, and many more.

How to make keto tuna melt

Scroll down to the recipe card and video for the detailed instructions. It’s not a difficult recipe, although it does have three parts. Here are the basics:

  1. First, you make the tuna salad. I like to add celery, mayonnaise, and Dijon mustard as well as several spices. You can follow my suggestions, or you can make it any way you like.
  2. Then you make 90-second bread and toast it. This is a coconut flour based quick bread. It’s easy to make, and once toasted, it tastes pretty good, though not as good as real bread, unfortunately.
  3. Finally, you assemble the keto tuna melts and broil them to melt the cheese.

What bread to use for keto tuna melt?

I use 90-second bread, a quick microwave bread that I make with coconut flour. It’s a bit spongy and eggy if not toasted. But toasting greatly improves its flavor and texture.

You can also use keto English muffins, made with almond flour. I think they taste better than 90-second bread, but they are higher in calories. Whether that’s a concern or not is up to you.

Cloud bread is another option, but it requires more effort to make, so I rarely use it in this recipe.

How to make the tuna salad

The tuna salad recipe I include here is just a suggestion. Many of us have our tried and tested tuna salad recipes, and you can certainly use your own recipe in these keto tuna melts.

I too like to change things up. Sometimes I use diced red onions, black olives or cucumber pickles instead of the celery. And sometimes I use sour cream instead of mayonnaise.

Is this a healthy recipe?

I think it’s very healthy. Take a look at the nutritional breakdown for each serving. I think it’s quite impressive!

Keto Tuna Melt Nutrition Info

As for the mercury in canned tuna, experts seem to be divided on the subject. My personal choice is to limit canned tuna to once a week and fresh tuna (such as this seared tuna) to no more than once a month. But you will need to make your own decision, of course.

It’s true that this recipe is high in sodium. Most people on the keto diet do not worry about that. If you need to limit sodium, perhaps this recipe is not appropriate for you. Or you might be able to lower the sodium by using unsalted canned tuna.

Note that I prefer to use avocado oil mayonnaise in the tuna salad. I believe it’s healthier than mayo based on vegetable oils. Another option is to use sour cream.

How many servings does this recipe make?

This recipe makes four open-faced tuna melt sandwiches, and I consider a serving as two of these sandwiches. The video shows me making half the recipe, as I was making it just for myself for lunch.

What to serve with keto tuna melt?

I usually serve keto tuna melt with a side of cherry tomato salad or a creamy cucumber salad. Sometimes I serve it with homemade quick pickles.

More tasty tuna recipes

Tuna is so versatile. I always have a few cans in my pantry. A couple of other canned tuna recipes that you might enjoy are keto tuna casserole, and these golden and crispy tuna cakes.

Keto Tuna Melt

This tasty keto tuna melt is the ultimate comfort food. In this easy recipe, the tuna melt is made with microwave 90-second bread.

Prep Time20 mins

Cook Time10 mins

Total Time30 mins

Course: Main Course

Cuisine: American

Keyword: cheese, tuna

Servings: 2 servings

Calories: 482kcal

INGREDIENTS

Tuna Salad:

  • 1 (5 oz) can tuna packed in water, drained (4 oz drained)
  • 2 tablespoons minced celery
  • 2 tablespoons avocado oil mayonnaise
  • 1 teaspoon Dijon mustard
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon dried parsley
  • 1/4 teaspoon onion powder
  • 1/4 teaspoon garlic powder

90-Second Breads:

  • 2 tablespoons unsalted butter, divided (if using salted, omit the salt)
  • 2 large eggs, divided
  • 2 tablespoons coconut flour, divided
  • 1/2 teaspoon kosher salt, divided (or just a pinch of fine salt)
  • 1/2 teaspoon baking powder, divided (gluten free if needed)
  • Olive oil spray for toasting the breads

Toppings:

  • 1/2 cup shredded sharp cheddar cheese, divided

INSTRUCTIONS

Make the tuna salad:

  • In a small mixing bowl break up the tuna with a fork. Mix in the celery. Add the mayonnaise, mustard, black pepper, dried parsley, onion powder and garlic powder. Stir to combine. Set aside.

Make the breads:

  • In a small microwave-safe bowl (mine measures 3 inches on the bottom and 3.5 inches at the top), melt 1 tablespoon unsalted butter in the microwave.

  • Allow the melted butter to slightly cool, then mix in 1 egg and 1 tablespoon coconut flour. Mix thoroughly, until very smooth. Mix in the kosher salt and baking powder.

  • Microwave the mixture on high for 90 seconds. Be careful when removing the bowl from the microwave. It will be hot. 

  • Allow the bread to cool for a minute or so. Gently, with a paring knife, loosen the bread edges and remove from the bowl onto a plate. Slice the bread crosswise into two slices.

  • Repeat steps 1-4 to make a second bread.

  • To toast the bread slices, heat a large nonstick skillet over medium-low (not higher) heat. Spray it with olive oil. Add the four bread slices. Cook, gently pressing on them with a spatula to ensure even toasting, until golden, about 3 minutes per side.

Assemble and broil the tuna melts:

  • Preheat the broiler on high (450 degrees F) and set the rack 4 inches from the heat source.

  • Place the four slices of toasted 90-second bread on a broiler-safe pan (I use a stainless steel skillet). Divide the tuna salad equally between the four slices. Top each slice with a quarter of the shredded cheese.

  • Place the pan under the broiler and broil just until the cheese has melted, about 1 minute. Serve immediately.

NUTRITION INFO Nutrition info is calculated using the SparkPeople.com recipe calculator. Carb count excludes sugar alcohols. These numbers are approximate. Please feel free to make your own calculations.

Nutrition Facts

Keto Tuna Melt

Amount Per Serving (2 tuna melts)

Calories 482 Calories from Fat 351

% Daily Value*

Total Fat 39g 60%

Saturated Fat 18g 90%

Sodium 942mg 39%

Total Carbohydrates 6g 2%

Dietary Fiber 3g 12%

Sugars 8g

Protein 26g 52%

* Percent Daily Values are based on a 2000 calorie diet.

ABOUT THE AUTHORVered DeLeeuw, LL.M., has been following a healthy real-food diet and blogging about it since 2011. She has taken nutrition courses at the Harvard School of Public Health and is currently working towards a Nutrition and Healthy Living Certificate from Cornell University. Her work has been featured in several major media outlets. Learn more.
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Keto Tuna Melt

More Healthy Recipes:

Keto Tuna Casserole
Keto Tuna Casserole
Tuna Cakes
Tuna Cakes

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